Gram to Cup

45 grams of granulated sugar to cups

45 g of granulated sugar is about 0.23 cups, which is roughly 1/4 cup or 3.6 tablespoons. That comes from 200 g per US cup. Granulated sugar barely compresses, so this number holds.

Measure45 g of granulated sugar
Cups0.23
Kitchen measure1/4 cup
Tablespoons3.6
Grams per cup used200 g

Granulated sugar is the best behaved ingredient in the kitchen. Its crystals are heavy, uniform and free flowing, so a cup weighs 200 g whether you scoop it, pour it or spoon it. There is no packing method to argue about.

Result
0.83 cups
About 7/8 cup of all-purpose flour. 100 g is 3.53 oz by weight.
Assumes spoon-and-level. Scooped flour runs closer to 140 g a cup.

Questions

How many cups is 45 g of granulated sugar?
0.23 cups, or about 1/4 cup. That is worked out at 200 g per US cup.
How many tablespoons is 45 g of granulated sugar?
About 3.6 tablespoons, since one US cup is 16 tablespoons. For small amounts tablespoons are usually the more accurate measure to work with.
Why does 45 g give a different number of cups for other ingredients?
Because cups measure volume and grams measure weight. 45 g of granulated sugar is 0.23 cups at 200 g per cup, while the same 45 g of a denser or lighter ingredient fills a different amount of space.

Other amounts of granulated sugar

25 g28 g30 g32 g33 g35 g39 g40 g50 g60 g

See all granulated sugar conversions or 45 g of every other ingredient.